On 2007-02-19 11:22, Yogesh Hasabnis wrote: > Hi, > > After all the testing, I have decided upon a basic > Amanda configuration for my requirements. I have 20 > tapes with me that I plan to rotate every 4 weeks. I > plan to configure Amanda to take full backup once a > week. The backup will executed only on the 5 week > days. So, as per my understanding my amanda.conf > should have > the following parameters > > dumpcycle 1 week > runspercycle 5 > tapecycle 20 tapes > runtapes 1
That is correct. > > I would be grateful if anybody could confirm whether > the above parameters are good enough. I am > particularly confused with the "tapecycle" parameter. > The amanda.conf man page states that "The number of > tapes in rotation must be larger than the number of > tapes required for a complete dump cycle. It is > considered good administrative practice to set the > tapecycle parameter slightly lower than the > actual number of tapes in rotation." This practice comes from the fact that when you need to skip the next tape (because you forgot it at home, or because it is broken, etc.) Amanda will insist that you insert a fresh tape (and label it), instead of the next one. Amanda will not overwrite only the oldest from the "tapecycle" number of tapes. In your case you do have 3 times a full dump somewhere in the older tapes, so you expect Amanda to overwrite the oldest-1 as well. So it is convenient to specify amanda some lower number (but still larger than dumpcycle!!) Unless you insist on having 3 full dumps in your history of course... > > So what is a proper value for the tapecycle parameter > in my case? You could set "tapecycle 15", and still label and use 20 tapes. Then Amanda accepts any of the last 5 tapes. Makes it easier to order new tapes, when one got broken etc. -- Paul Bijnens, xplanation Technology Services Tel +32 16 397.511 Technologielaan 21 bus 2, B-3001 Leuven, BELGIUM Fax +32 16 397.512 http://www.xplanation.com/ email: [EMAIL PROTECTED] *********************************************************************** * I think I've got the hang of it now: exit, ^D, ^C, ^\, ^Z, ^Q, ^^, * * F6, quit, ZZ, :q, :q!, M-Z, ^X^C, logoff, logout, close, bye, /bye, * * stop, end, F3, ~., ^]c, +++ ATH, disconnect, halt, abort, hangup, * * PF4, F20, ^X^X, :D::D, KJOB, F14-f-e, F8-e, kill -1 $$, shutdown, * * init 0, kill -9 1, Alt-F4, Ctrl-Alt-Del, AltGr-NumLock, Stop-A, ... * * ... "Are you sure?" ... YES ... Phew ... I'm out * ***********************************************************************
